In heterogeneous catalysis, the catalyst is in a different phase from the reactants. name: 3-Bromo-6-chloropyridazine, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 89089-18-9, name is 3-Bromo-6-chloropyridazine. In an article£¬Which mentioned a new discovery about 89089-18-9
New reactions of gamma-halocarbanions: Underestimated reactive intermediates in organic synthesis
Short-lived gamma-halocarbanions can be trapped by active electrophiles such as aldehydes, imines, and Michael acceptors to give anionic adducts, which undergo intramolecular substitution to give substituted tetrahydrofurans, pyrrolidines, and cyclopentanes. This has underlain a new method for the synthesis of these valuable ring systems. We have determined the acidity of the gamma-halocarbanion precursors and have shown that the halogen atoms in the gamma-position relative to the carbanion center exert a significant stabilizing effect on the carbanion.
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Reference£º
Pyridazine – Wikipedia,
Pyridazine | C4H4N2865 – PubChem